Wheel-hub



N. 0 N ma KU CH AL Mm .H AW L R. M M m Patented June 1, 1897,

UNITED STATES PATENT OFFICE.

ROBERT F.. A. MACKINNON, OF CENTRALIA, lVlSCONSIN.

WHEEL-HUB.

SPECIFICATION forming part of Letters Patent No. 583,651, dated June 1,1897.

Application led December 21, 1896. Serial No. 616,510. (No model.)

T0 all whom it may concern.'

Be it known that I, ROBERT F. A. MACKIN- NON, a subject of the Queen ofEngland, residing at Centralia, in the county of Wood and State ofVisconsin, have invented a new and useful lVheel-Hub, of which thefollowing is a specification.

This invention relates to Wheel-hubs; and it has for its object toprovide a hub of this character having exceptional strength and adaptedespecially for use in connection with heavy vehicles.

The main and primary obj ect contemplated by the invention is to providean extra support for the spokes by practically extending the tenonthereof, While at the same time providing a construction whichstrengthens and braces the entire hub and obviates the standing of waterbetween the spokes of the wheel, as is quite common in connection WithWheel-hubs banded in the usual manner.

Vith these and other objects in view, which will readily appear as thenature of the invention is better understood, the same consists in thenovel construction, combination, and arrangement of parts hereinaftermore fully described, illustrated, and claimed.

In the drawings, Figure 1 is a plan View of a wheel-hub embodying theimprovements contemplated by the present invention. lFig. 2 is avertical longitudinal sectional view of a portion of the hub on anenlarged scale. Fig. 3 is a detail sectional viewr on the line 3 3 ofFig. 2. Fig. 4 is a detail in perspective of one of the metalstrengthening-bands, showing the connection of the tie-plates therewith.Fig. 5 is a detail plan View of the hub constructed to receive thestrengtheningbands and tie-plates.

Referring to the accompanying drawings, 1 designates a cylindricalhub-body of ordinary outward form and which may be either a solid orsectional body, according to preference, either form of hub-body beingreadily fitted with the improvements contemplated.

In the present invention the hub-body 1 is provided intermediate of itsends with a circular series of rectangular spoke-mortises 2, whichmortises are separated by the usual triangular mortise-partitions 3,having inwardly-convergent sides, so as to dispose their Yflat bases atthe outer side of the hub-body,

and in the present invention the Inortise-partitions 3 project at theirouter sides beyond the periphery of the hub-body, such projection ofsaid partitions being necessarily formed by a reduction of the hu b-bodyat each side of the circular series of mortises 2, thereby producing ateach side of the series of mortises the annular rest-shoulders 4, whichshoulders are disposed in planes coincident with the ends of themortises.

The spoke-mortises 2 receive therein in the usual manner the squaredtenons 5 at the inner ends of the Wheel-spokes 6, and said inner tenonends of the spokes which are fitted in the mortises 2 are designed to bestrengthened and braced by the metallic strengthening-bands 7, which arearranged, respectively, at opposite sides of the series of mortises 3and therefore at opposite sides of the series of spokes fitted in saidmortises. The oppositely-located strengthening-bands 7 may loe made ofeither iron or steel, or of any lnetal, and are tightly fitted on thehubbody 1, so as to rest at their inner flat edges 8 directly againstthe flat annular rest-shoul ders 4 of the hub-body, and saidstrengthening-bands 7 are provided with a peripheral series ofregularly-spaced brace-lugs 9, having flat inner faces 10 and inclinedouter faces or sides l1. The brace-lugs 9 of the strengthening-bands arespaced a distance apart equaling the distance between the spokes of thewheel, and the fiat inner faces 10 of the lugs form continuations of theflat inner edges of the bands disposed directly at the ends of themortises 2, so that the said lugs will rest flat against opposite sidesof the spokes and extend a distance along said sides of the spokes toprovide an eXtra long tenoning of the spokes in the hubs. To secure theresult noted, the metal strengthening-bands 7 are fitted on thehub-body, so that their brace-lugs 9 will be located diametricallyopposite each other and respectively at opposite ends of thespoke-mortises 2, so as to rest fiat against the opposite sides of thespokes tenoned in the mortises.

Between the brace-lugs 9 thereof the metallic strengthening-bands 7 areprovided With dovetailed seats or notches 12, which receive therein thedovetailed tongues 13, formed at opposite ends, respectively, of theflat metal- IOO lic tie-plates 14, which are arranged [iat on the outersides or bases of the 1nortise-partitions 3 between the inner tenon endof the spokes extending into the mortises. The dovetailed tongues 13 ofthe flat metallic tie-plates 14 are permanently swaged or otherwiserigidly secured in the seats 12 to provide means for holding the bands 7irnily against the shoulders 4 of thehub-body, whereby the bracelugs 9will be permanently held in tight contact with the inner end portions ofthe spokes at opposite sides thereof, so as to firmly brace the spokesand strengthen the connection thereof with the hub.

While the metallic tie-plates 14 are described as having a d'ovetailedconnection with, the metallic strengthening-bands 7, other suitablemeans may be substituted for securing the fastening of the bands againstthe shoulders Lland against the wheel-spokes, and at this point it willbe observed that by providing the shoulders 4 the bands 7 can be iittedon a perfectly level surface, and when connected bythe tie-platesobviate the possibility of water standing between the spokes, as is thecase in connection with wheel-h ubs ban ded in the coinnion way.

From the foregoing it is thought that the construction and 1n anyadvantages of the herein-described wheel-hub will be apparent to thoseskilled in the art without further description, and it will beunderstood that changes in the forni, proportion,and the ni inor detailsof construction may be resorted to without departing from the principleor Sacrificing any ot' the advantages of this invention.

Having thus described the invention, what is claimed, and desired to besecured by Letters Patent, is-

1. In a wheel-hub, the hub-body provided with a circular series ofspoke-niortises and with annular rest-shoulders at opposite sides of theseries of mortises, metallic strengthening-bands iitted on the hub-bodyagainst said opposite rest-shoulders and provided with a peripheralseries of radial lugs lying at the ends of the spoke-inortises, andtie-plates arranged lat on the lnortise-partitions between the spokesand connected at their ends with the opposite strengthening-bandsbetween the lugs thereof, substantially as set forth.

2. In a wheel-hub, the hub-body provided with a circular series ofspoke-inortises and having the outer sides of the inortise-partitionsprojecting beyond the periphery of the body to produce annularrest-shoulders disposed in planes coincident with the ends of theinortises, metallic strengthening-bands iitted on the hub-body againstsaid shoulders and provided with a peripheral series of radial lugslying at the ends of the spoke-inortises, and a fastening connectionbetween the two bands to secure the brace-lugs thereof against the innerend portions of the spokes and to hold the bandsagainst said shoulders,substantially as set forth.

3. In a wheel-hub, the hub-body provided with a circular series ofspoke-mortises and at opposite sides of the series of inortises withannular rest-shoulders, metallic strengthening-bands fitted on thehub-body against the shoulders and provided with a peripheral series ofradial lugs lying at the ends of the spoke-inortises and withdov'etailed seats or notches between the lugs, and tie-plates arrangedi'lat on the ni ortise-partitions between the spokes and provided attheir ends with dovetailed tongues fitting in the seats or notches ofthe bands, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

ROBERT F. A. MACKINI'ON. lVitnesses:

I. E. PHILLEO, LAURA CANNING.

